The Opportunity
We are looking for an experienced Infrastructure Security & Network Engineer to join a global IT infrastructure team on a 12-month contract.
In this role, you will be responsible for implementing, maintaining and improving enterprise network and security infrastructure across both on-premises and cloud environments.
You will work closely with infrastructure, enterprise security and cloud operations teams, helping ensure that global network services remain secure, reliable and efficient.
This is a hands-on technical position suited to someone with a strong background in network infrastructure who has developed specialist expertise in network security, Cisco technologies and infrastructure automation.
Key Responsibilities
- Design, implement, maintain and support enterprise network and security infrastructure.
- Configure, manage and support Cisco security technologies, including firewalls and network access control solutions.
- Implement and maintain Cisco Identity Services Engine (ISE), including 802.1X and network authentication services.
- Monitor security controls, investigate technical issues and escalate potential risks.
- Manage the installation, integration, upgrading and maintenance of security products across global environments.
- Identify opportunities to automate infrastructure and security processes using scripting and orchestration tools.
- Support AWS cloud infrastructure and related security services.
- Perform network troubleshooting, packet captures and traffic analysis.
- Review existing security systems and identify opportunities for technical improvements.
- Collaborate with global infrastructure and security teams and provide technical guidance and knowledge sharing.
Essential Technical Experience
We are looking for candidates with at least 5 years of professional IT experience, including 3 years in a similar infrastructure, networking or security position within an enterprise environment.
You should have experience with:
Network Security & Cisco Technologies
- Cisco Identity Services Engine (ISE).
- 802.1X / DOT1X, AAA and network access control.
- Cisco ASA and Firepower Threat Defense (FTD).
- Cisco security solutions such as AMP and Umbrella.
- pxGrid integrations.
Cloud & Automation
- Amazon Web Services (AWS).
- Infrastructure automation and orchestration.
- Python and Shell scripting.
Security Monitoring & Vulnerability Management
- SIEM platforms such as Splunk.
- Nessus or similar vulnerability assessment tools.
- Security monitoring and control effectiveness.
Infrastructure & Networking
- Microsoft Active Directory.
- Linux administration.
- Strong TCP/IP networking knowledge.
- Network troubleshooting, packet captures and traffic analysis.
- Understanding of authentication, authorisation and accounting (AAA).
Desirable Experience
- Docker and Kubernetes.
- Kali Linux.
- Basic penetration testing and ethical hacking.
- Security certifications such as CEH, CISSP or equivalent.
- Experience within large-scale enterprise, telecommunications, financial services or utilities environments.
What Makes This Opportunity Interesting?
- Work within a global enterprise IT environment.
- Exposure to a varied network and security technology landscape.
- Opportunity to work with advanced Cisco security technologies.
- Involvement in infrastructure automation and cloud security initiatives.
- Collaborate with international technical teams.
- A 12-month contract with a hybrid working arrangement.
Contract Details
- Location: Hoofddorp, Netherlands (close to the train station).
- Working arrangement: Hybrid.
- Duration: 12 months.
- Start: ASAP, latest 1 December 2026.
- Contract options: Employed contractor arrangement or ZZP / self-employed freelance contract, depending on candidate preference and eligibility.
Darwin Recruitment is acting as an Employment Business in relation to this vacancy.
Kiara Cumming